Nov json-jwt version >= 0.5.0 && < 1.9.4 contains a CWE-347: Improper Verification of Cryptographic Signature vulnerability in Decryption of AES-GCM encrypted JSON Web Tokens that can result in Attacker can forge a authentication tag. This attack appear to be exploitable via network connectivity. This vulnerability appears to have been fixed in 1.9.4 and later.
CVSS 2.0
Severity: MEDIUM
Problem Type: CWE-347,
Products Affected
| Vendor | Product | Version |
|---|---|---|
| json-jwt_project | json-jwt | * |
The json-jwt gem before 1.11.0 for Ruby lacks an element count during the splitting of a JWE string.
CVSS 3.x
| Source | Score | Severity | Vector | Exploitability | Impact |
|---|---|---|---|---|---|
| nvd@nist.gov | 7.5 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N | 3.9 | 3.6 |
CVSS 2.0
Severity: MEDIUM
Problem Type: CWE-287,
Products Affected
| Vendor | Product | Version |
|---|---|---|
| json-jwt_project | json-jwt | * |
| debian | debian_linux | 9.0 |
The json-jwt (aka JSON::JWT) gem 1.16.3 for Ruby sometimes allows bypass of identity checks via a sign/encryption confusion attack. For example, JWE can sometimes be used to bypass JSON::JWT.decode.
Products Affected
| Vendor | Product | Version |
|---|---|---|
| json-jwt_project | json-jwt | 1.16.3 |